Lead-pencil.



No. 889,932. PATENTED JUNE 9, 1908.

- J. B. KENNY.

LEAD PENCIL.

APPL'IOATION FILED JAN. 27. 1908..

Fig. Q..

Fig. l.

e b c UNITED sTATEs PATENT oEEIoE.

JOHN B. KENNY, OF GENEVA, NEW YORK.

LEAD-PENCIL.

Application filed January 27, 1908.

To all whom 'it may concern:

Be it known that I, JOHN B. KENNY, a citizen of the United States,resident of Geneva, in the county of Ontario and State of New York, havemade a certain-new and useful Invention in Lead-Pencils; and I declarethe following to be a full, clear, `and exact description of the same,such as will enable others skilled in the art to which it ap ertai-ns tomake and use the invention, re erence being had to theaccompanyingdrawings, and to letters or fi res of reference marked thereon, whichorm a part of this specification. Y

l Figure 1 is a central longitudinal section of the invention asapplied. Fig. 2 is a similar view showing the rubber ti almost entirelyexposed. Fig. 3 is a simi ar view showing the rubber tip entirelyinclosed. Fig. 4 is a side view of the invention as applied. Fig. 5 is acentral longitudinal section of a modified form of the invention. l

The invention h'as relation to lead pencils provided with tips of rubberor other erasing material, and has for its object the provision of meansin connection with such a tip whereby. it may be entirely used inerasing and whereby it may be protected when not 1n use. p

Other objects and advantages will hereinafter a pear.

In tie accompanying drawings, illustrating the invention,l the letter a,designates a lead encil and b, its rubber ti cure to the end of thepencilp manner. I

c, is a short sleeve of thinv metal which is secured upon the endportion of the pencil a short distance from its termination, in anysuitable manner, the s ace between the end of the encil and the s eevebeing marked c. This s eeve is provided with an external screw threadc2, running throughout its length,.and fitting thereover in engagementtherewith is a longer internally threaded' sleeve d, also of thin metaland having at its outer end an inward extending annular flange e,provided with a short sleeve extension f, of the same diameter as theshort sleeve c, and capable of close engagement with the rubber tip,whose external diameter in the usual .is the same as the internal'diameter ofthe Specification of Letters Patent.

which is se-v Patented June 9, 1908.

Serial No. 412,885.

sleeve extension. The thread of the sleeve d, extends from its inner endto the Iinward extending flange thereof, and the length of the shortsleeve extension is the saineV or about the same as the length of theinterval c', `between the end of the pencil and the short sleeve c,

In'the use of the device, the rubber tip is normally protected orentirely inclosed at its sides, as shown in Fig. 3 of the drawings. Asthe rubber or erasing material is used, the outer or longer sleeve d, isgradually turned down upon the pencil until the sleeve extension f,thereof will lie in the interval c', between the end of the pencil andthe short sleeve c, as shown in Fig.- 2, when the last remaining portionof the erasing material may be employed. At the same time the shortsleeve extension f, will always have close bracing engagement with therubber ti pIn Fig. 5 of the drawings is shown a modified form of theinvention wherein the inner sleeve x, is made longer and is of rotarycharacter, being confined at eachend by bands y, y, fixed u` on thepencil. the device t e movement of the outer sleeve for the purposealready described is effected by turnin the inner sleeve by means of thethin knur ed or milled fiange e, at, the lower end thereof. The deviceis otherwise `the same as in the main form of the invention.

Having described the invention, what I claim and desire to secure byLetters Patent is: A

1; The combination with a lead pencil having a rubber tip, of an innerfixed sleeve provided throughout its length with an external screwthread, an outer internally threaded adjustable sleeve having engagementwith said inner sleeve, and provided at its outer end with an annularinward extending flange having a bracinor cylindrical sleeve extensionof an internal diameter which is the same as the diameter ofthe rubbertip and capable of close bracin engagement with said tip.

2. The com ination with a lead pencil having a rubber tip, of an innersleeve sep- In this form of arated from the end of the pencil by aninterval, and provided throughout its length with an internal screwthread, an outer externally threaded sleeve having engagement with saidinner sleeve and provided at its outer P In teetimony whereof I aix mysignature, end with an annular mward extending flange presence of twoWitnesses. having a short sleeve extension of the same diameter as theinner sleeve, capable of close JOHN B KENNY 5 engagement with the rubbertip, and of be- Witnesses:

ing withdrawn into said interval at the end WM. J. HUNT,

of the pencil. MARGARET DEsMoND.

